code: def memoize(fn=None, **kwargs):
      if fn is None:
          return lambda _fn: memoize(_fn, **kwargs)
      return functools.lru_cache(**kwargs)(fn)
  
imports: import collections
  import functools
  import queue
  import torch
  import pyro.distributions
  import pyro.poutine
  from pyro.distributions.util import logsumexp
  from pyro.infer.abstract_infer import TracePosterior
  from pyro.poutine.runtime import NonlocalExit
label_desc: Use image node_id 1 for calling a global function with example usage: memoize(fn) and returns: functools, function